Option (a) is correct. The context discusses how 'the scale and speed of these flows' account for the uniqueness of contemporary globalisation, which implies the role of technology in enabling such scale and speed of global flows. Options (b), (c), and (d) are contradicted by the context: (b) is contradicted because the context discusses global flows involving 'governments, businesses, and ordinary people in different parts of the world,' not a particular community; (c) is contradicted because the context states globalisation 'has taken place through much of human history' and 'has a strong historical basis'; (d) is contradicted because the context explicitly states 'It is wrong to assume that globalisation has purely economic dimensions' and that it is 'multi-dimensional' with 'political, economic and cultural manifestations.'